It looks a bit like a single bay of a horizontally polarized FM Broadcast antenna, scaled for 2 meters of course. Which means you could stack them for gain! I'd love to see a VNA plot for it to see bandwidth for it as well as just vswr but it looks pretty good so far. Looking forward to your test of it.
You want to make a good 2m antenna? Build a 4 to 8 element cubical quad. It's a pain to tune with more than 4 elements, but it will absolutely rock with about 13dB gain over a simple dipole.
There was a gap so the two sides weren't touching but wondering g if TBE chalk is correct ,? That might be a problem with this antenna as it's a balanced antenna
It depends on how you mount it, right? My understanding is that the electric field goes from one loop to the other. So if the square loops are one on top of the other, the polarization is vertical. I too was wondering is they could be stacked vertically for increased gain.
It's just a skeletonized slot antenna, if the "slot" is horizontal, as shown here, the polarization is vertical. ignore the fact it's a cube, and think of it as a pair of 1/2 wave horizontal elements with a connection between them. In other words... it's a folded dipole with a fancy name. Principal dates back to mid 1830's from a french physicist named Babinet.
many antenna designs will look like a dead short to DC, J-pole, slim-jim, bonded element yagi, for a few. RF at the design frequency does not act like DC.
This is a great idea FUZZ for sure. How about making a copper tube antenna for FTA TV ?? Nice video Sir.
So, where's the link to the SWR measurement of this antenna. I'd like to see that before I invest in cutting up $40 worth of copper pipe, ya'know??
It looks a bit like a single bay of a horizontally polarized FM Broadcast antenna, scaled for 2 meters of course. Which means you could stack them for gain! I'd love to see a VNA plot for it to see bandwidth for it as well as just vswr but it looks pretty good so far. Looking forward to your test of it.
Looks great. I need to make something. I think it will be this. Thanks for the video.
You want to make a good 2m antenna? Build a 4 to 8 element cubical quad. It's a pain to tune with more than 4 elements, but it will absolutely rock with about 13dB gain over a simple dipole.
Would like to see the update to the antenna
Please do the follow up video on how to tune it. I want to build one, but would like to know how to tune it for the lowest possible SWR.
I was getting a around 1.5 for a SWR. The gap between the 2 pipes inside the gray box is how to adjust the swr.
Guys you do know this is the same as a hentenna only wrapped into a square but could be a circular too.
What is the possibility of this being made with lots of bends in a 1/4" tube?
So this is a slot antenna 😊
You have 1/2" here. Is there a reason 1/4" can't be used?
RF travels around the outside of a conductor. The bigger your conductor the wider the bandwidth (easier to tune) and the higher power it can handle.
Well ? Where is the follow up ? Would like to see it on the air. Both mobile and HT radios to see performance.
I’m going to hook it up to the SWR this weekend. I work full time during the week. And it gets dark now when I get home.
Anyone figured out why it won't resonate at 2 meters yet ?
Yes, the 2 sides of the copper tube are touching. Should be a gap.
There was a gap so the two sides weren't touching but wondering g if TBE chalk is correct ,? That might be a problem with this antenna as it's a balanced antenna
So tell us is this antenna vertical of horizontal radiation. What are the advantages of the design.
It depends on how you mount it, right? My understanding is that the electric field goes from one loop to the other. So if the square loops are one on top of the other, the polarization is vertical. I too was wondering is they could be stacked vertically for increased gain.
Thank you so much for a great video fuzz I learnt a lot.
A bit more explanation can be found here: aresraces-leecountyfl”.”org/assets/folded_loop_antenna”.”pdf . Remove the quotation marks.
It's just a skeletonized slot antenna, if the "slot" is horizontal, as shown here, the polarization is vertical. ignore the fact it's a cube, and think of it as a pair of 1/2 wave horizontal elements with a connection between them. In other words... it's a folded dipole with a fancy name. Principal dates back to mid 1830's from a french physicist named Babinet.
@@Doonit_hard_way_since_65
I love sluts!
...oh, _slots_
Nevermind.
looks like a dead short?
many antenna designs will look like a dead short to DC, J-pole, slim-jim, bonded element yagi, for a few. RF at the design frequency does not act like DC.
i dont see the reason why someone haw to built this antenna..
Reason to build this antenna Is if you live in an area such as an HOA This Antenna can be hidden